Nothing beats hot water to relax in a hot tub. Very sneaky companies let you bath in all the hot tubs and by the time you sat in the first one that you liked, they put you in a second tub at the showroom and since your muscles are already warm and water absorbent, the 2nd tub with the inferior, low powered jets actually feels just right. That is, until you buy it and try it at home and you wonder what made you choose this tub because you liked it in the show room. It's similar to adding sweatener to strawberries that are not sweet. You can put sugar on dog crap and it will taste good. Once your body is warm and more positional tolerrant, you can't really judge how good a tub is. It's like smelling perfumes without sniffing those coffee beans in between.
With that said, you can use a hot tub to chill and still get relaxed. Increased blood circulation, of course. But, what about the lactic acid that needs to be squeezed out of the cells in my sore muscles from stronger jets? Getting temporariy relief from hot water is not the same as long term relief by fixing the problem and moving the waste out of the body from the milking motion of the jets. The water has to be strong enough to put pressure on the one way valves so toxins can move out and oxygenated blood back in.
Many people get relief as their body gets warmer. The more the body temperature increases, the more the blood vessels expand.
These tubs tend to have lower powered motors and insulation in the cheaper models tends to be less. It can often be hard to regulate the temperatures of the tubs in this range, if you buy a cheaper one that is not designed for high water output and outdoor usage. If you set it at 104, it should stay at that. Keeping it in the cold, adding more people to the tub that soak up the heat, or having and air blower for bubbles can offset the temperature.
Those that buy these tubs for relaxation as opposed to therapeutic tubs, tend to keep them hotter. Hotter tub water tends to have more water born bacteria around. Most people use bromide but I wouldn't recommend that. I haven't heard of anyone getting sick from the bacteria but some people get rashes as the hot water opens up the pores and lets the bacteria leach in. A good sign that a tub is not clean is a green or pinkish film around the tub. More so the pinkish color and a nasty smelling foam.
I suggest structuring the water if you plan on perspiring and nasty toxins eliminate in the tub. Not as much as lymphatic tubs, but hot water bathing stimulates the blood flow and the immune modulating effect can increase mucus secretions from the lungs.
For the man that comes home after a hard day at work who wants to crack open a bear or have some friends over and relax and just kick back ans watch some tv.
Who loves there dog? Some people love their dog but sometimes dogs are a big no no. These are the tubs that have a great filtration system. You don't have to worry about the dog hair after your little friend comes in and joins you. The micro filtration system will capture all the dog hair. You don't want to get a 1,000 dollar bill for a burnt out motor. It's always clean. There is a guy online that doesn't believe in adding chemicals to the tub. Some people want a hot tub but are afraid of the chemicals. This one guy online has ingestable peroxide. This guy makes an ingestable peroxide which is pure, no chemicals. Totally chemical free. Many people use ozone but that is not good for hot temperatures. The peroxide can work at hot temperatures even.